./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c3556d84b743029397591123c4f713fb54c922b0817fe8965ed5070f16a3f39a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:51:46,852 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:51:46,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:51:46,947 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:51:46,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:51:46,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:51:46,987 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:51:46,987 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:51:46,988 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:51:46,988 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:51:46,989 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:51:46,990 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:51:46,990 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:51:46,990 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:51:46,991 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:51:46,991 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:51:46,992 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:46,992 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:46,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:46,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:51:46,994 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:51:46,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:51:46,995 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:51:46,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:51:46,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:51:46,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:51:46,996 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:51:46,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:51:46,996 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3556d84b743029397591123c4f713fb54c922b0817fe8965ed5070f16a3f39a [2024-11-28 02:51:47,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:51:47,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:51:47,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:51:47,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:51:47,350 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:51:47,353 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-28 02:51:50,438 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/data/94d3c7001/042f8575d4304b4b992d161945efb5b3/FLAGc9075d01f [2024-11-28 02:51:51,107 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:51:51,108 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-28 02:51:51,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/data/94d3c7001/042f8575d4304b4b992d161945efb5b3/FLAGc9075d01f [2024-11-28 02:51:51,155 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/data/94d3c7001/042f8575d4304b4b992d161945efb5b3 [2024-11-28 02:51:51,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:51:51,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:51:51,161 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:51,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:51:51,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:51:51,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:51" (1/1) ... [2024-11-28 02:51:51,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e0bf486 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:51, skipping insertion in model container [2024-11-28 02:51:51,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:51:51" (1/1) ... [2024-11-28 02:51:51,299 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:51:51,665 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c[11668,11681] [2024-11-28 02:51:51,729 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c[17223,17236] [2024-11-28 02:51:52,608 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:52,632 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:51:52,694 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c[11668,11681] [2024-11-28 02:51:52,715 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/sv-benchmarks/c/combinations/pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c[17223,17236] [2024-11-28 02:51:53,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:51:53,379 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:51:53,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53 WrapperNode [2024-11-28 02:51:53,381 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:51:53,382 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:53,382 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:51:53,382 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:51:53,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:53,474 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,022 INFO L138 Inliner]: procedures = 37, calls = 22, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 5095 [2024-11-28 02:51:54,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:51:54,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:51:54,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:51:54,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:51:54,033 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,090 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,291 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 02:51:54,291 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,292 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,488 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,562 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,638 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:51:54,729 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:51:54,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:51:54,730 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:51:54,731 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (1/1) ... [2024-11-28 02:51:54,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:51:54,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:51:54,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:51:54,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:51:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:51:54,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:51:54,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:51:54,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:51:54,981 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:51:54,983 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:52:02,024 INFO L? ?]: Removed 744 outVars from TransFormulas that were not future-live. [2024-11-28 02:52:02,024 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:52:02,062 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:52:02,063 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:52:02,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:02 BoogieIcfgContainer [2024-11-28 02:52:02,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:52:02,067 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:52:02,067 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:52:02,074 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:52:02,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:51:51" (1/3) ... [2024-11-28 02:52:02,075 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121f0cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:02, skipping insertion in model container [2024-11-28 02:52:02,075 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:51:53" (2/3) ... [2024-11-28 02:52:02,076 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@121f0cb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:52:02, skipping insertion in model container [2024-11-28 02:52:02,079 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:52:02" (3/3) ... [2024-11-28 02:52:02,081 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-28 02:52:02,109 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:52:02,113 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_lcr.5.ufo.UNBOUNDED.pals+Problem12_label01.c that has 1 procedures, 901 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-28 02:52:02,245 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:52:02,262 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1015ee44, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:52:02,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:52:02,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 02:52:02,283 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:02,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:02,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:02,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 372784668, now seen corresponding path program 1 times [2024-11-28 02:52:02,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297587720] [2024-11-28 02:52:02,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:02,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:02,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:02,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:02,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297587720] [2024-11-28 02:52:02,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297587720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:02,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:02,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:52:02,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910866915] [2024-11-28 02:52:02,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:02,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:52:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:02,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:52:02,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:52:02,677 INFO L87 Difference]: Start difference. First operand has 901 states, 898 states have (on average 1.9042316258351892) internal successors, (1710), 900 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:02,825 INFO L93 Difference]: Finished difference Result 1763 states and 3348 transitions. [2024-11-28 02:52:02,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:52:02,828 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-28 02:52:02,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:02,855 INFO L225 Difference]: With dead ends: 1763 [2024-11-28 02:52:02,855 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 02:52:02,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:52:02,872 INFO L435 NwaCegarLoop]: 1641 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:02,876 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1641 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:02,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 02:52:02,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-28 02:52:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.893157262905162) internal successors, (1577), 834 states have internal predecessors, (1577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1577 transitions. [2024-11-28 02:52:02,980 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1577 transitions. Word has length 24 [2024-11-28 02:52:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:02,981 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1577 transitions. [2024-11-28 02:52:02,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1577 transitions. [2024-11-28 02:52:02,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-28 02:52:02,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:02,987 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:02,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:52:02,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:02,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:02,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1621360038, now seen corresponding path program 1 times [2024-11-28 02:52:02,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:02,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953117885] [2024-11-28 02:52:02,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:02,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:03,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:03,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953117885] [2024-11-28 02:52:03,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953117885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:03,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:03,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:52:03,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759052624] [2024-11-28 02:52:03,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:03,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:52:03,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:03,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:52:03,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:52:03,411 INFO L87 Difference]: Start difference. First operand 835 states and 1577 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:03,685 INFO L93 Difference]: Finished difference Result 883 states and 1651 transitions. [2024-11-28 02:52:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:52:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-28 02:52:03,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:03,694 INFO L225 Difference]: With dead ends: 883 [2024-11-28 02:52:03,697 INFO L226 Difference]: Without dead ends: 835 [2024-11-28 02:52:03,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:52:03,699 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 0 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6264 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:03,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6264 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-28 02:52:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-28 02:52:03,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 833 states have (on average 1.8559423769507803) internal successors, (1546), 834 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:03,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1546 transitions. [2024-11-28 02:52:03,770 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1546 transitions. Word has length 24 [2024-11-28 02:52:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:03,770 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1546 transitions. [2024-11-28 02:52:03,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:03,771 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1546 transitions. [2024-11-28 02:52:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-28 02:52:03,776 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:03,777 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:03,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:52:03,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:03,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:03,778 INFO L85 PathProgramCache]: Analyzing trace with hash 130997, now seen corresponding path program 1 times [2024-11-28 02:52:03,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:03,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143248023] [2024-11-28 02:52:03,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:03,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:03,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:03,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:03,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:03,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143248023] [2024-11-28 02:52:03,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143248023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:03,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:03,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:52:03,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736544022] [2024-11-28 02:52:03,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:03,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:03,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:03,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:03,996 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:03,997 INFO L87 Difference]: Start difference. First operand 835 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:09,225 INFO L93 Difference]: Finished difference Result 2339 states and 4419 transitions. [2024-11-28 02:52:09,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:09,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-28 02:52:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:09,234 INFO L225 Difference]: With dead ends: 2339 [2024-11-28 02:52:09,235 INFO L226 Difference]: Without dead ends: 1586 [2024-11-28 02:52:09,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:09,237 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 877 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2274 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 2865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:09,238 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 535 Invalid, 2865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2274 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-28 02:52:09,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2024-11-28 02:52:09,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2024-11-28 02:52:09,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1584 states have (on average 1.6243686868686869) internal successors, (2573), 1585 states have internal predecessors, (2573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2573 transitions. [2024-11-28 02:52:09,308 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2573 transitions. Word has length 48 [2024-11-28 02:52:09,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:09,309 INFO L471 AbstractCegarLoop]: Abstraction has 1586 states and 2573 transitions. [2024-11-28 02:52:09,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,309 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2573 transitions. [2024-11-28 02:52:09,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 02:52:09,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:09,311 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:09,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:52:09,311 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:09,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:09,312 INFO L85 PathProgramCache]: Analyzing trace with hash 653480561, now seen corresponding path program 1 times [2024-11-28 02:52:09,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:09,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419838197] [2024-11-28 02:52:09,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:09,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:09,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:09,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419838197] [2024-11-28 02:52:09,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419838197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:09,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:09,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:09,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984877416] [2024-11-28 02:52:09,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:09,585 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:09,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:09,586 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:09,586 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:09,586 INFO L87 Difference]: Start difference. First operand 1586 states and 2573 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:09,909 INFO L93 Difference]: Finished difference Result 2026 states and 3273 transitions. [2024-11-28 02:52:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 02:52:09,910 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-28 02:52:09,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:09,921 INFO L225 Difference]: With dead ends: 2026 [2024-11-28 02:52:09,921 INFO L226 Difference]: Without dead ends: 1982 [2024-11-28 02:52:09,922 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2024-11-28 02:52:09,923 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 7979 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7979 SdHoareTripleChecker+Valid, 2696 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:09,924 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7979 Valid, 2696 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:09,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2024-11-28 02:52:09,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1628. [2024-11-28 02:52:09,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1628 states, 1626 states have (on average 1.6236162361623616) internal successors, (2640), 1627 states have internal predecessors, (2640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1628 states to 1628 states and 2640 transitions. [2024-11-28 02:52:09,984 INFO L78 Accepts]: Start accepts. Automaton has 1628 states and 2640 transitions. Word has length 54 [2024-11-28 02:52:09,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:09,986 INFO L471 AbstractCegarLoop]: Abstraction has 1628 states and 2640 transitions. [2024-11-28 02:52:09,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1628 states and 2640 transitions. [2024-11-28 02:52:09,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 02:52:09,989 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:09,991 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:09,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:52:09,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:09,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash -486102655, now seen corresponding path program 1 times [2024-11-28 02:52:09,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:09,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980644099] [2024-11-28 02:52:09,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:09,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:10,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:10,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980644099] [2024-11-28 02:52:10,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980644099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:10,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:10,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:10,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901122347] [2024-11-28 02:52:10,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:10,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:10,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:10,173 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:10,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:10,174 INFO L87 Difference]: Start difference. First operand 1628 states and 2640 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:10,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:10,228 INFO L93 Difference]: Finished difference Result 1789 states and 2895 transitions. [2024-11-28 02:52:10,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:10,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 02:52:10,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:10,236 INFO L225 Difference]: With dead ends: 1789 [2024-11-28 02:52:10,236 INFO L226 Difference]: Without dead ends: 1703 [2024-11-28 02:52:10,237 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:10,239 INFO L435 NwaCegarLoop]: 1542 mSDtfsCounter, 1484 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1605 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:10,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1605 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:10,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1703 states. [2024-11-28 02:52:10,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1703 to 1699. [2024-11-28 02:52:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.6205067766647023) internal successors, (2750), 1698 states have internal predecessors, (2750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:10,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2750 transitions. [2024-11-28 02:52:10,289 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2750 transitions. Word has length 56 [2024-11-28 02:52:10,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:10,290 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2750 transitions. [2024-11-28 02:52:10,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:10,290 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2750 transitions. [2024-11-28 02:52:10,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 02:52:10,292 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:10,292 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:10,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:52:10,292 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:10,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:10,293 INFO L85 PathProgramCache]: Analyzing trace with hash -419609143, now seen corresponding path program 1 times [2024-11-28 02:52:10,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:10,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030986026] [2024-11-28 02:52:10,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:10,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:10,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:10,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:10,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030986026] [2024-11-28 02:52:10,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030986026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:10,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:10,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:10,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891859011] [2024-11-28 02:52:10,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:10,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:10,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:10,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:10,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:10,747 INFO L87 Difference]: Start difference. First operand 1699 states and 2750 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:11,021 INFO L93 Difference]: Finished difference Result 1858 states and 2998 transitions. [2024-11-28 02:52:11,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:11,022 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 02:52:11,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:11,030 INFO L225 Difference]: With dead ends: 1858 [2024-11-28 02:52:11,030 INFO L226 Difference]: Without dead ends: 1701 [2024-11-28 02:52:11,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:52:11,032 INFO L435 NwaCegarLoop]: 1539 mSDtfsCounter, 5976 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5976 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:11,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5976 Valid, 1804 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:11,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1701 states. [2024-11-28 02:52:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1701 to 1699. [2024-11-28 02:52:11,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1699 states, 1697 states have (on average 1.6193282262816735) internal successors, (2748), 1698 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2748 transitions. [2024-11-28 02:52:11,083 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2748 transitions. Word has length 56 [2024-11-28 02:52:11,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:11,084 INFO L471 AbstractCegarLoop]: Abstraction has 1699 states and 2748 transitions. [2024-11-28 02:52:11,084 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2748 transitions. [2024-11-28 02:52:11,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 02:52:11,085 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:11,085 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:11,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:52:11,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:11,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:11,086 INFO L85 PathProgramCache]: Analyzing trace with hash -537704617, now seen corresponding path program 1 times [2024-11-28 02:52:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:11,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423212280] [2024-11-28 02:52:11,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:11,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:11,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:11,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423212280] [2024-11-28 02:52:11,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423212280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:11,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:11,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 02:52:11,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623128787] [2024-11-28 02:52:11,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:11,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:52:11,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:11,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:52:11,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:52:11,583 INFO L87 Difference]: Start difference. First operand 1699 states and 2748 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:11,687 INFO L93 Difference]: Finished difference Result 1707 states and 2757 transitions. [2024-11-28 02:52:11,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:52:11,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-28 02:52:11,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:11,696 INFO L225 Difference]: With dead ends: 1707 [2024-11-28 02:52:11,697 INFO L226 Difference]: Without dead ends: 1705 [2024-11-28 02:52:11,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:52:11,699 INFO L435 NwaCegarLoop]: 1540 mSDtfsCounter, 0 mSDsluCounter, 9227 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10767 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:11,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10767 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:11,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2024-11-28 02:52:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1705. [2024-11-28 02:52:11,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1705 states, 1703 states have (on average 1.6165590135055783) internal successors, (2753), 1704 states have internal predecessors, (2753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1705 states to 1705 states and 2753 transitions. [2024-11-28 02:52:11,754 INFO L78 Accepts]: Start accepts. Automaton has 1705 states and 2753 transitions. Word has length 57 [2024-11-28 02:52:11,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:11,755 INFO L471 AbstractCegarLoop]: Abstraction has 1705 states and 2753 transitions. [2024-11-28 02:52:11,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1705 states and 2753 transitions. [2024-11-28 02:52:11,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:52:11,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:11,757 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:11,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:52:11,758 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:11,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:11,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1148329065, now seen corresponding path program 1 times [2024-11-28 02:52:11,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:11,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44278096] [2024-11-28 02:52:11,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:11,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:11,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:11,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:11,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:11,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44278096] [2024-11-28 02:52:11,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44278096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:11,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:11,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:11,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242995345] [2024-11-28 02:52:11,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:11,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:11,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:11,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:11,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:11,879 INFO L87 Difference]: Start difference. First operand 1705 states and 2753 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:11,922 INFO L93 Difference]: Finished difference Result 2015 states and 3225 transitions. [2024-11-28 02:52:11,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:11,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 02:52:11,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:11,932 INFO L225 Difference]: With dead ends: 2015 [2024-11-28 02:52:11,932 INFO L226 Difference]: Without dead ends: 1852 [2024-11-28 02:52:11,933 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:11,934 INFO L435 NwaCegarLoop]: 1593 mSDtfsCounter, 1497 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1497 SdHoareTripleChecker+Valid, 1668 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:11,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1497 Valid, 1668 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:11,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2024-11-28 02:52:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1850. [2024-11-28 02:52:11,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1848 states have (on average 1.6071428571428572) internal successors, (2970), 1849 states have internal predecessors, (2970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2970 transitions. [2024-11-28 02:52:11,994 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2970 transitions. Word has length 58 [2024-11-28 02:52:11,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:11,995 INFO L471 AbstractCegarLoop]: Abstraction has 1850 states and 2970 transitions. [2024-11-28 02:52:11,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:11,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2970 transitions. [2024-11-28 02:52:11,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:52:11,996 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:11,996 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:11,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:52:11,996 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:11,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:11,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1908376215, now seen corresponding path program 1 times [2024-11-28 02:52:11,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:11,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207675512] [2024-11-28 02:52:11,997 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:11,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:12,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:12,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:12,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207675512] [2024-11-28 02:52:12,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207675512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:12,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:12,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:12,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351149081] [2024-11-28 02:52:12,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:12,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:12,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:12,103 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:12,103 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,103 INFO L87 Difference]: Start difference. First operand 1850 states and 2970 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:12,153 INFO L93 Difference]: Finished difference Result 2434 states and 3848 transitions. [2024-11-28 02:52:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:12,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 02:52:12,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:12,162 INFO L225 Difference]: With dead ends: 2434 [2024-11-28 02:52:12,163 INFO L226 Difference]: Without dead ends: 2126 [2024-11-28 02:52:12,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,167 INFO L435 NwaCegarLoop]: 1591 mSDtfsCounter, 1495 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1670 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:12,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1670 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:12,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2126 states. [2024-11-28 02:52:12,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2126 to 2124. [2024-11-28 02:52:12,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2124 states, 2122 states have (on average 1.589066918001885) internal successors, (3372), 2123 states have internal predecessors, (3372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2124 states to 2124 states and 3372 transitions. [2024-11-28 02:52:12,235 INFO L78 Accepts]: Start accepts. Automaton has 2124 states and 3372 transitions. Word has length 58 [2024-11-28 02:52:12,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:12,235 INFO L471 AbstractCegarLoop]: Abstraction has 2124 states and 3372 transitions. [2024-11-28 02:52:12,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,236 INFO L276 IsEmpty]: Start isEmpty. Operand 2124 states and 3372 transitions. [2024-11-28 02:52:12,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:52:12,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:12,237 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:12,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:52:12,237 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:12,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:12,238 INFO L85 PathProgramCache]: Analyzing trace with hash 171122281, now seen corresponding path program 1 times [2024-11-28 02:52:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:12,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057098207] [2024-11-28 02:52:12,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:12,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:12,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:12,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057098207] [2024-11-28 02:52:12,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057098207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:12,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:12,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:12,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298669120] [2024-11-28 02:52:12,328 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:12,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:12,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:12,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:12,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,330 INFO L87 Difference]: Start difference. First operand 2124 states and 3372 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:12,387 INFO L93 Difference]: Finished difference Result 3224 states and 4998 transitions. [2024-11-28 02:52:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:12,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 02:52:12,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:12,398 INFO L225 Difference]: With dead ends: 3224 [2024-11-28 02:52:12,398 INFO L226 Difference]: Without dead ends: 2642 [2024-11-28 02:52:12,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,401 INFO L435 NwaCegarLoop]: 1589 mSDtfsCounter, 1493 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1493 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:12,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1493 Valid, 1672 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2642 states. [2024-11-28 02:52:12,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2642 to 2640. [2024-11-28 02:52:12,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2638 states have (on average 1.558756633813495) internal successors, (4112), 2639 states have internal predecessors, (4112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 4112 transitions. [2024-11-28 02:52:12,486 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 4112 transitions. Word has length 58 [2024-11-28 02:52:12,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:12,486 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 4112 transitions. [2024-11-28 02:52:12,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 4112 transitions. [2024-11-28 02:52:12,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 02:52:12,487 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:12,487 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:12,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:52:12,488 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:12,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:12,489 INFO L85 PathProgramCache]: Analyzing trace with hash 1952055145, now seen corresponding path program 1 times [2024-11-28 02:52:12,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:12,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699007133] [2024-11-28 02:52:12,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:12,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:12,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:12,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699007133] [2024-11-28 02:52:12,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699007133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:12,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:12,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:12,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637145613] [2024-11-28 02:52:12,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:12,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:12,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:12,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:12,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,571 INFO L87 Difference]: Start difference. First operand 2640 states and 4112 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:12,667 INFO L93 Difference]: Finished difference Result 4708 states and 7106 transitions. [2024-11-28 02:52:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:12,668 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 02:52:12,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:12,681 INFO L225 Difference]: With dead ends: 4708 [2024-11-28 02:52:12,681 INFO L226 Difference]: Without dead ends: 3610 [2024-11-28 02:52:12,684 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,685 INFO L435 NwaCegarLoop]: 1587 mSDtfsCounter, 1491 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1491 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:12,685 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1491 Valid, 1674 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:12,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3610 states. [2024-11-28 02:52:12,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3610 to 3608. [2024-11-28 02:52:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3608 states, 3606 states have (on average 1.5152523571824736) internal successors, (5464), 3607 states have internal predecessors, (5464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3608 states to 3608 states and 5464 transitions. [2024-11-28 02:52:12,818 INFO L78 Accepts]: Start accepts. Automaton has 3608 states and 5464 transitions. Word has length 58 [2024-11-28 02:52:12,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:12,818 INFO L471 AbstractCegarLoop]: Abstraction has 3608 states and 5464 transitions. [2024-11-28 02:52:12,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:12,818 INFO L276 IsEmpty]: Start isEmpty. Operand 3608 states and 5464 transitions. [2024-11-28 02:52:12,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-28 02:52:12,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:12,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:12,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 02:52:12,819 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:12,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:12,823 INFO L85 PathProgramCache]: Analyzing trace with hash -783970460, now seen corresponding path program 1 times [2024-11-28 02:52:12,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126982873] [2024-11-28 02:52:12,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:12,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:12,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:12,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:12,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:12,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126982873] [2024-11-28 02:52:12,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126982873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:12,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:12,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:12,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169554896] [2024-11-28 02:52:12,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:12,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:12,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:12,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:12,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:12,921 INFO L87 Difference]: Start difference. First operand 3608 states and 5464 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:13,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:13,022 INFO L93 Difference]: Finished difference Result 5791 states and 8638 transitions. [2024-11-28 02:52:13,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2024-11-28 02:52:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:13,055 INFO L225 Difference]: With dead ends: 5791 [2024-11-28 02:52:13,055 INFO L226 Difference]: Without dead ends: 4604 [2024-11-28 02:52:13,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:13,060 INFO L435 NwaCegarLoop]: 1598 mSDtfsCounter, 1496 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:13,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1669 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:13,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2024-11-28 02:52:13,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 4602. [2024-11-28 02:52:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4602 states, 4600 states have (on average 1.4908695652173913) internal successors, (6858), 4601 states have internal predecessors, (6858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:13,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4602 states to 4602 states and 6858 transitions. [2024-11-28 02:52:13,226 INFO L78 Accepts]: Start accepts. Automaton has 4602 states and 6858 transitions. Word has length 60 [2024-11-28 02:52:13,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:13,226 INFO L471 AbstractCegarLoop]: Abstraction has 4602 states and 6858 transitions. [2024-11-28 02:52:13,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:13,227 INFO L276 IsEmpty]: Start isEmpty. Operand 4602 states and 6858 transitions. [2024-11-28 02:52:13,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:52:13,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:13,233 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:13,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:52:13,233 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:13,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:13,234 INFO L85 PathProgramCache]: Analyzing trace with hash -2113574007, now seen corresponding path program 1 times [2024-11-28 02:52:13,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:13,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285651930] [2024-11-28 02:52:13,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:13,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:13,486 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 02:52:13,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:13,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285651930] [2024-11-28 02:52:13,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285651930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:13,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:13,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:13,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302350206] [2024-11-28 02:52:13,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:13,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:13,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:13,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:13,488 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:13,489 INFO L87 Difference]: Start difference. First operand 4602 states and 6858 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:14,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:14,163 INFO L93 Difference]: Finished difference Result 20550 states and 29520 transitions. [2024-11-28 02:52:14,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:14,164 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:52:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:14,213 INFO L225 Difference]: With dead ends: 20550 [2024-11-28 02:52:14,213 INFO L226 Difference]: Without dead ends: 17492 [2024-11-28 02:52:14,219 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:14,221 INFO L435 NwaCegarLoop]: 1613 mSDtfsCounter, 6332 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6332 SdHoareTripleChecker+Valid, 3636 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:14,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6332 Valid, 3636 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:14,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17492 states. [2024-11-28 02:52:14,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17492 to 7658. [2024-11-28 02:52:14,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7658 states, 7656 states have (on average 1.4579414838035527) internal successors, (11162), 7657 states have internal predecessors, (11162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:14,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7658 states to 7658 states and 11162 transitions. [2024-11-28 02:52:14,608 INFO L78 Accepts]: Start accepts. Automaton has 7658 states and 11162 transitions. Word has length 77 [2024-11-28 02:52:14,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:14,608 INFO L471 AbstractCegarLoop]: Abstraction has 7658 states and 11162 transitions. [2024-11-28 02:52:14,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 7 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:14,608 INFO L276 IsEmpty]: Start isEmpty. Operand 7658 states and 11162 transitions. [2024-11-28 02:52:14,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:52:14,611 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:14,611 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:14,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 02:52:14,612 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:14,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:14,613 INFO L85 PathProgramCache]: Analyzing trace with hash -875311991, now seen corresponding path program 1 times [2024-11-28 02:52:14,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:14,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446855993] [2024-11-28 02:52:14,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:14,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:14,848 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 02:52:14,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:14,848 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446855993] [2024-11-28 02:52:14,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446855993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:14,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:14,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:14,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414202901] [2024-11-28 02:52:14,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:14,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:14,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:14,849 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:14,849 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:14,850 INFO L87 Difference]: Start difference. First operand 7658 states and 11162 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:15,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:15,487 INFO L93 Difference]: Finished difference Result 23606 states and 33824 transitions. [2024-11-28 02:52:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:15,489 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:52:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:15,545 INFO L225 Difference]: With dead ends: 23606 [2024-11-28 02:52:15,545 INFO L226 Difference]: Without dead ends: 20548 [2024-11-28 02:52:15,555 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:15,556 INFO L435 NwaCegarLoop]: 1610 mSDtfsCounter, 6353 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6353 SdHoareTripleChecker+Valid, 3580 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:15,556 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6353 Valid, 3580 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:15,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20548 states. [2024-11-28 02:52:16,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20548 to 12250. [2024-11-28 02:52:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12250 states, 12248 states have (on average 1.4351730894839974) internal successors, (17578), 12249 states have internal predecessors, (17578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:16,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 17578 transitions. [2024-11-28 02:52:16,219 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 17578 transitions. Word has length 77 [2024-11-28 02:52:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:16,221 INFO L471 AbstractCegarLoop]: Abstraction has 12250 states and 17578 transitions. [2024-11-28 02:52:16,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 17578 transitions. [2024-11-28 02:52:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:52:16,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:16,226 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:16,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:52:16,226 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:16,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:16,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1204186505, now seen corresponding path program 1 times [2024-11-28 02:52:16,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:16,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310767452] [2024-11-28 02:52:16,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:16,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:16,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:16,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 02:52:16,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:16,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310767452] [2024-11-28 02:52:16,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [310767452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:16,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:16,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:16,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538980686] [2024-11-28 02:52:16,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:16,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:16,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:16,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:16,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:16,507 INFO L87 Difference]: Start difference. First operand 12250 states and 17578 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:17,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:17,472 INFO L93 Difference]: Finished difference Result 26662 states and 38128 transitions. [2024-11-28 02:52:17,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:17,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:52:17,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:17,544 INFO L225 Difference]: With dead ends: 26662 [2024-11-28 02:52:17,544 INFO L226 Difference]: Without dead ends: 23604 [2024-11-28 02:52:17,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:17,557 INFO L435 NwaCegarLoop]: 1607 mSDtfsCounter, 6394 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6394 SdHoareTripleChecker+Valid, 3561 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:17,561 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6394 Valid, 3561 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:17,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23604 states. [2024-11-28 02:52:18,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23604 to 15306. [2024-11-28 02:52:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15306 states, 15304 states have (on average 1.4298222686879247) internal successors, (21882), 15305 states have internal predecessors, (21882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:18,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15306 states to 15306 states and 21882 transitions. [2024-11-28 02:52:18,320 INFO L78 Accepts]: Start accepts. Automaton has 15306 states and 21882 transitions. Word has length 77 [2024-11-28 02:52:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:18,321 INFO L471 AbstractCegarLoop]: Abstraction has 15306 states and 21882 transitions. [2024-11-28 02:52:18,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 15306 states and 21882 transitions. [2024-11-28 02:52:18,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-28 02:52:18,325 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:18,325 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:18,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:52:18,326 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:18,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:18,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1309847927, now seen corresponding path program 1 times [2024-11-28 02:52:18,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:18,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924028143] [2024-11-28 02:52:18,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:18,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:18,603 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 02:52:18,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:18,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924028143] [2024-11-28 02:52:18,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924028143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:18,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:18,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:18,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046568539] [2024-11-28 02:52:18,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:18,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:18,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:18,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:18,607 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:18,607 INFO L87 Difference]: Start difference. First operand 15306 states and 21882 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:19,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:19,381 INFO L93 Difference]: Finished difference Result 29718 states and 42432 transitions. [2024-11-28 02:52:19,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:19,381 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2024-11-28 02:52:19,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:19,452 INFO L225 Difference]: With dead ends: 29718 [2024-11-28 02:52:19,452 INFO L226 Difference]: Without dead ends: 26660 [2024-11-28 02:52:19,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:19,465 INFO L435 NwaCegarLoop]: 1611 mSDtfsCounter, 6347 mSDsluCounter, 1984 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6347 SdHoareTripleChecker+Valid, 3595 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:19,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6347 Valid, 3595 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26660 states. [2024-11-28 02:52:20,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26660 to 18362. [2024-11-28 02:52:20,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18362 states, 18360 states have (on average 1.4262527233115467) internal successors, (26186), 18361 states have internal predecessors, (26186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:20,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18362 states to 18362 states and 26186 transitions. [2024-11-28 02:52:20,133 INFO L78 Accepts]: Start accepts. Automaton has 18362 states and 26186 transitions. Word has length 77 [2024-11-28 02:52:20,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:20,133 INFO L471 AbstractCegarLoop]: Abstraction has 18362 states and 26186 transitions. [2024-11-28 02:52:20,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:20,134 INFO L276 IsEmpty]: Start isEmpty. Operand 18362 states and 26186 transitions. [2024-11-28 02:52:20,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 02:52:20,136 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:20,136 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:20,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 02:52:20,137 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:20,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:20,137 INFO L85 PathProgramCache]: Analyzing trace with hash -974292767, now seen corresponding path program 1 times [2024-11-28 02:52:20,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:20,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238887120] [2024-11-28 02:52:20,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:20,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:20,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:20,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:20,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238887120] [2024-11-28 02:52:20,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238887120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:20,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:20,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:20,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285221360] [2024-11-28 02:52:20,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:20,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:20,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:20,264 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:20,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:20,264 INFO L87 Difference]: Start difference. First operand 18362 states and 26186 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:20,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:20,627 INFO L93 Difference]: Finished difference Result 30354 states and 43281 transitions. [2024-11-28 02:52:20,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:20,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-28 02:52:20,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:20,663 INFO L225 Difference]: With dead ends: 30354 [2024-11-28 02:52:20,663 INFO L226 Difference]: Without dead ends: 13536 [2024-11-28 02:52:20,673 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:20,674 INFO L435 NwaCegarLoop]: 1586 mSDtfsCounter, 50 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3117 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:20,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3117 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:20,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13536 states. [2024-11-28 02:52:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13536 to 13534. [2024-11-28 02:52:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13534 states, 13532 states have (on average 1.4352645580845405) internal successors, (19422), 13533 states have internal predecessors, (19422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:21,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13534 states to 13534 states and 19422 transitions. [2024-11-28 02:52:21,006 INFO L78 Accepts]: Start accepts. Automaton has 13534 states and 19422 transitions. Word has length 79 [2024-11-28 02:52:21,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:21,006 INFO L471 AbstractCegarLoop]: Abstraction has 13534 states and 19422 transitions. [2024-11-28 02:52:21,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:21,006 INFO L276 IsEmpty]: Start isEmpty. Operand 13534 states and 19422 transitions. [2024-11-28 02:52:21,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-28 02:52:21,010 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:21,010 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:21,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 02:52:21,010 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:21,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:21,011 INFO L85 PathProgramCache]: Analyzing trace with hash -146696572, now seen corresponding path program 1 times [2024-11-28 02:52:21,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:21,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632502474] [2024-11-28 02:52:21,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:21,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:21,192 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:52:21,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:21,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632502474] [2024-11-28 02:52:21,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632502474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:21,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:21,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 02:52:21,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920479129] [2024-11-28 02:52:21,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:21,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:52:21,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:21,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:52:21,194 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:52:21,194 INFO L87 Difference]: Start difference. First operand 13534 states and 19422 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:21,757 INFO L93 Difference]: Finished difference Result 24426 states and 34948 transitions. [2024-11-28 02:52:21,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:52:21,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2024-11-28 02:52:21,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:21,810 INFO L225 Difference]: With dead ends: 24426 [2024-11-28 02:52:21,811 INFO L226 Difference]: Without dead ends: 22248 [2024-11-28 02:52:21,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:52:21,820 INFO L435 NwaCegarLoop]: 1605 mSDtfsCounter, 6335 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6335 SdHoareTripleChecker+Valid, 3725 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:21,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6335 Valid, 3725 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:52:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22248 states. [2024-11-28 02:52:22,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22248 to 15710. [2024-11-28 02:52:22,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15710 states, 15708 states have (on average 1.4320091673032849) internal successors, (22494), 15709 states have internal predecessors, (22494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:22,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15710 states to 15710 states and 22494 transitions. [2024-11-28 02:52:22,382 INFO L78 Accepts]: Start accepts. Automaton has 15710 states and 22494 transitions. Word has length 79 [2024-11-28 02:52:22,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:22,383 INFO L471 AbstractCegarLoop]: Abstraction has 15710 states and 22494 transitions. [2024-11-28 02:52:22,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:22,383 INFO L276 IsEmpty]: Start isEmpty. Operand 15710 states and 22494 transitions. [2024-11-28 02:52:22,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-28 02:52:22,386 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:22,386 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:22,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 02:52:22,386 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:22,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:22,387 INFO L85 PathProgramCache]: Analyzing trace with hash 762759661, now seen corresponding path program 1 times [2024-11-28 02:52:22,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:22,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212482665] [2024-11-28 02:52:22,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:22,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:22,518 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:22,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:22,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212482665] [2024-11-28 02:52:22,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212482665] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:22,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:22,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:22,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304821472] [2024-11-28 02:52:22,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:22,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:22,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:22,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:22,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:22,520 INFO L87 Difference]: Start difference. First operand 15710 states and 22494 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:22,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:22,752 INFO L93 Difference]: Finished difference Result 22786 states and 32480 transitions. [2024-11-28 02:52:22,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:22,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2024-11-28 02:52:22,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:22,773 INFO L225 Difference]: With dead ends: 22786 [2024-11-28 02:52:22,773 INFO L226 Difference]: Without dead ends: 8640 [2024-11-28 02:52:22,786 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:22,787 INFO L435 NwaCegarLoop]: 1579 mSDtfsCounter, 45 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 3102 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:22,787 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 3102 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8640 states. [2024-11-28 02:52:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8640 to 8638. [2024-11-28 02:52:23,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8638 states, 8636 states have (on average 1.436544696618805) internal successors, (12406), 8637 states have internal predecessors, (12406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8638 states to 8638 states and 12406 transitions. [2024-11-28 02:52:23,121 INFO L78 Accepts]: Start accepts. Automaton has 8638 states and 12406 transitions. Word has length 80 [2024-11-28 02:52:23,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:23,121 INFO L471 AbstractCegarLoop]: Abstraction has 8638 states and 12406 transitions. [2024-11-28 02:52:23,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8638 states and 12406 transitions. [2024-11-28 02:52:23,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-28 02:52:23,124 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:23,124 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:23,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:52:23,124 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:23,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:23,125 INFO L85 PathProgramCache]: Analyzing trace with hash -154885185, now seen corresponding path program 1 times [2024-11-28 02:52:23,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:23,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989718494] [2024-11-28 02:52:23,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:23,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:23,271 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:23,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:23,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989718494] [2024-11-28 02:52:23,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989718494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:23,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:23,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:23,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636961420] [2024-11-28 02:52:23,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:23,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:23,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:23,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:23,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:23,274 INFO L87 Difference]: Start difference. First operand 8638 states and 12406 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:23,400 INFO L93 Difference]: Finished difference Result 12178 states and 17348 transitions. [2024-11-28 02:52:23,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:23,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2024-11-28 02:52:23,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:23,412 INFO L225 Difference]: With dead ends: 12178 [2024-11-28 02:52:23,412 INFO L226 Difference]: Without dead ends: 5104 [2024-11-28 02:52:23,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:23,420 INFO L435 NwaCegarLoop]: 1572 mSDtfsCounter, 42 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:23,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 3087 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:23,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5104 states. [2024-11-28 02:52:23,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5104 to 5102. [2024-11-28 02:52:23,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 5100 states have (on average 1.4537254901960783) internal successors, (7414), 5101 states have internal predecessors, (7414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 7414 transitions. [2024-11-28 02:52:23,560 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 7414 transitions. Word has length 82 [2024-11-28 02:52:23,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:23,560 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 7414 transitions. [2024-11-28 02:52:23,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 7414 transitions. [2024-11-28 02:52:23,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-28 02:52:23,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:23,563 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:23,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:52:23,565 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:23,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:23,565 INFO L85 PathProgramCache]: Analyzing trace with hash 673860625, now seen corresponding path program 1 times [2024-11-28 02:52:23,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:23,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697511512] [2024-11-28 02:52:23,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:23,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:23,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:23,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:23,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697511512] [2024-11-28 02:52:23,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697511512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:23,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:23,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:23,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84481312] [2024-11-28 02:52:23,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:23,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:23,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:23,701 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:23,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:23,701 INFO L87 Difference]: Start difference. First operand 5102 states and 7414 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:23,787 INFO L93 Difference]: Finished difference Result 6874 states and 9860 transitions. [2024-11-28 02:52:23,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:23,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2024-11-28 02:52:23,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:23,797 INFO L225 Difference]: With dead ends: 6874 [2024-11-28 02:52:23,797 INFO L226 Difference]: Without dead ends: 3336 [2024-11-28 02:52:23,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:23,804 INFO L435 NwaCegarLoop]: 1565 mSDtfsCounter, 39 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3072 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:23,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3072 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3336 states. [2024-11-28 02:52:23,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3336 to 3334. [2024-11-28 02:52:23,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3334 states, 3332 states have (on average 1.4837935174069627) internal successors, (4944), 3333 states have internal predecessors, (4944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3334 states to 3334 states and 4944 transitions. [2024-11-28 02:52:23,890 INFO L78 Accepts]: Start accepts. Automaton has 3334 states and 4944 transitions. Word has length 84 [2024-11-28 02:52:23,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:23,890 INFO L471 AbstractCegarLoop]: Abstraction has 3334 states and 4944 transitions. [2024-11-28 02:52:23,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:23,892 INFO L276 IsEmpty]: Start isEmpty. Operand 3334 states and 4944 transitions. [2024-11-28 02:52:23,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 02:52:23,893 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:23,893 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:23,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 02:52:23,894 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:23,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:23,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1584456419, now seen corresponding path program 1 times [2024-11-28 02:52:23,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:23,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997695839] [2024-11-28 02:52:23,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:23,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:23,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:24,021 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:24,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:24,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997695839] [2024-11-28 02:52:24,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997695839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:52:24,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:52:24,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:52:24,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859645560] [2024-11-28 02:52:24,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:52:24,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:52:24,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:24,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:52:24,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:24,022 INFO L87 Difference]: Start difference. First operand 3334 states and 4944 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:24,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:24,079 INFO L93 Difference]: Finished difference Result 4222 states and 6155 transitions. [2024-11-28 02:52:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:52:24,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2024-11-28 02:52:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:24,090 INFO L225 Difference]: With dead ends: 4222 [2024-11-28 02:52:24,090 INFO L226 Difference]: Without dead ends: 2452 [2024-11-28 02:52:24,092 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:52:24,095 INFO L435 NwaCegarLoop]: 1558 mSDtfsCounter, 36 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 3057 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:24,096 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 3057 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:52:24,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2024-11-28 02:52:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2450. [2024-11-28 02:52:24,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2450 states, 2448 states have (on average 1.5204248366013071) internal successors, (3722), 2449 states have internal predecessors, (3722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:24,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2450 states to 2450 states and 3722 transitions. [2024-11-28 02:52:24,152 INFO L78 Accepts]: Start accepts. Automaton has 2450 states and 3722 transitions. Word has length 86 [2024-11-28 02:52:24,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:24,152 INFO L471 AbstractCegarLoop]: Abstraction has 2450 states and 3722 transitions. [2024-11-28 02:52:24,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:24,153 INFO L276 IsEmpty]: Start isEmpty. Operand 2450 states and 3722 transitions. [2024-11-28 02:52:24,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 02:52:24,154 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:24,154 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:24,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 02:52:24,155 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:24,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:24,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1438021579, now seen corresponding path program 1 times [2024-11-28 02:52:24,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:24,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198917444] [2024-11-28 02:52:24,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:24,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:24,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:25,592 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:25,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:25,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198917444] [2024-11-28 02:52:25,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198917444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:25,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012599542] [2024-11-28 02:52:25,593 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:25,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:25,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:52:25,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:52:25,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:52:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:25,809 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:52:25,817 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:52:26,629 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:26,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:52:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:28,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012599542] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:52:28,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:52:28,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-28 02:52:28,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371983087] [2024-11-28 02:52:28,662 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:52:28,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 02:52:28,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:28,663 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 02:52:28,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=657, Unknown=0, NotChecked=0, Total=756 [2024-11-28 02:52:28,665 INFO L87 Difference]: Start difference. First operand 2450 states and 3722 transitions. Second operand has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:31,464 INFO L93 Difference]: Finished difference Result 6208 states and 8786 transitions. [2024-11-28 02:52:31,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-28 02:52:31,465 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2024-11-28 02:52:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:31,478 INFO L225 Difference]: With dead ends: 6208 [2024-11-28 02:52:31,479 INFO L226 Difference]: Without dead ends: 5322 [2024-11-28 02:52:31,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=657, Invalid=2423, Unknown=0, NotChecked=0, Total=3080 [2024-11-28 02:52:31,483 INFO L435 NwaCegarLoop]: 1502 mSDtfsCounter, 18650 mSDsluCounter, 6522 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18650 SdHoareTripleChecker+Valid, 8024 SdHoareTripleChecker+Invalid, 918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:31,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18650 Valid, 8024 Invalid, 918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:52:31,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2024-11-28 02:52:31,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 5284. [2024-11-28 02:52:31,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5284 states, 5282 states have (on average 1.420863309352518) internal successors, (7505), 5283 states have internal predecessors, (7505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:31,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5284 states to 5284 states and 7505 transitions. [2024-11-28 02:52:31,771 INFO L78 Accepts]: Start accepts. Automaton has 5284 states and 7505 transitions. Word has length 88 [2024-11-28 02:52:31,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:31,771 INFO L471 AbstractCegarLoop]: Abstraction has 5284 states and 7505 transitions. [2024-11-28 02:52:31,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 7.785714285714286) internal successors, (218), 27 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:31,771 INFO L276 IsEmpty]: Start isEmpty. Operand 5284 states and 7505 transitions. [2024-11-28 02:52:31,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:52:31,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:31,774 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:31,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:52:31,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:31,976 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:31,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:31,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1982597732, now seen corresponding path program 1 times [2024-11-28 02:52:31,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:31,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479630036] [2024-11-28 02:52:31,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:32,720 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:32,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:32,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479630036] [2024-11-28 02:52:32,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479630036] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:32,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764073441] [2024-11-28 02:52:32,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:32,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:32,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:52:32,725 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:52:32,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:52:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:32,936 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 02:52:32,942 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:52:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:52:33,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:52:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-28 02:52:33,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764073441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:52:33,630 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:52:33,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 4] total 16 [2024-11-28 02:52:33,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024216703] [2024-11-28 02:52:33,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:52:33,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 02:52:33,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:33,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 02:52:33,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 02:52:33,632 INFO L87 Difference]: Start difference. First operand 5284 states and 7505 transitions. Second operand has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:36,726 INFO L93 Difference]: Finished difference Result 28358 states and 37966 transitions. [2024-11-28 02:52:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-11-28 02:52:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-28 02:52:36,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:36,771 INFO L225 Difference]: With dead ends: 28358 [2024-11-28 02:52:36,771 INFO L226 Difference]: Without dead ends: 24638 [2024-11-28 02:52:36,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 776 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=578, Invalid=2178, Unknown=0, NotChecked=0, Total=2756 [2024-11-28 02:52:36,782 INFO L435 NwaCegarLoop]: 1546 mSDtfsCounter, 10168 mSDsluCounter, 7881 mSDsCounter, 0 mSdLazyCounter, 801 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10168 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 801 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:36,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10168 Valid, 9427 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 801 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 02:52:36,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24638 states. [2024-11-28 02:52:37,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24638 to 24512. [2024-11-28 02:52:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24512 states, 24510 states have (on average 1.280905752753978) internal successors, (31395), 24511 states have internal predecessors, (31395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24512 states to 24512 states and 31395 transitions. [2024-11-28 02:52:37,752 INFO L78 Accepts]: Start accepts. Automaton has 24512 states and 31395 transitions. Word has length 89 [2024-11-28 02:52:37,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:37,753 INFO L471 AbstractCegarLoop]: Abstraction has 24512 states and 31395 transitions. [2024-11-28 02:52:37,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 15.625) internal successors, (250), 16 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:37,753 INFO L276 IsEmpty]: Start isEmpty. Operand 24512 states and 31395 transitions. [2024-11-28 02:52:37,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-28 02:52:37,755 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:37,755 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:37,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:52:37,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-28 02:52:37,956 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:37,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:37,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1775616186, now seen corresponding path program 1 times [2024-11-28 02:52:37,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:37,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305141501] [2024-11-28 02:52:37,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:37,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:38,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:38,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305141501] [2024-11-28 02:52:38,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305141501] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:38,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525941587] [2024-11-28 02:52:38,498 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:38,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:38,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:52:38,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:52:38,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:52:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:38,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 02:52:38,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:52:39,332 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:39,332 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:52:40,410 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:40,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525941587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:52:40,410 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:52:40,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-28 02:52:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253780148] [2024-11-28 02:52:40,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:52:40,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 02:52:40,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:40,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 02:52:40,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2024-11-28 02:52:40,412 INFO L87 Difference]: Start difference. First operand 24512 states and 31395 transitions. Second operand has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:42,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:42,499 INFO L93 Difference]: Finished difference Result 70014 states and 89051 transitions. [2024-11-28 02:52:42,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:52:42,499 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-28 02:52:42,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:42,534 INFO L225 Difference]: With dead ends: 70014 [2024-11-28 02:52:42,534 INFO L226 Difference]: Without dead ends: 48227 [2024-11-28 02:52:42,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=245, Invalid=747, Unknown=0, NotChecked=0, Total=992 [2024-11-28 02:52:42,544 INFO L435 NwaCegarLoop]: 1518 mSDtfsCounter, 15571 mSDsluCounter, 6233 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15571 SdHoareTripleChecker+Valid, 7751 SdHoareTripleChecker+Invalid, 399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:42,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15571 Valid, 7751 Invalid, 399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 02:52:42,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48227 states. [2024-11-28 02:52:44,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48227 to 47631. [2024-11-28 02:52:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47631 states, 47629 states have (on average 1.256587373238993) internal successors, (59850), 47630 states have internal predecessors, (59850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47631 states to 47631 states and 59850 transitions. [2024-11-28 02:52:45,007 INFO L78 Accepts]: Start accepts. Automaton has 47631 states and 59850 transitions. Word has length 89 [2024-11-28 02:52:45,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:45,007 INFO L471 AbstractCegarLoop]: Abstraction has 47631 states and 59850 transitions. [2024-11-28 02:52:45,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.5) internal successors, (209), 21 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:45,007 INFO L276 IsEmpty]: Start isEmpty. Operand 47631 states and 59850 transitions. [2024-11-28 02:52:45,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-28 02:52:45,009 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:45,010 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:45,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:52:45,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:45,211 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:45,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:45,211 INFO L85 PathProgramCache]: Analyzing trace with hash 2718711, now seen corresponding path program 1 times [2024-11-28 02:52:45,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:45,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185051291] [2024-11-28 02:52:45,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:45,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:45,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:45,759 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:45,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185051291] [2024-11-28 02:52:45,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185051291] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:45,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668398149] [2024-11-28 02:52:45,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:45,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:45,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:52:45,763 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:52:45,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:52:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:45,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:52:45,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:52:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:46,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:52:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:48,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668398149] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:52:48,247 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:52:48,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 22 [2024-11-28 02:52:48,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972959269] [2024-11-28 02:52:48,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:52:48,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 02:52:48,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:52:48,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 02:52:48,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=402, Unknown=0, NotChecked=0, Total=506 [2024-11-28 02:52:48,250 INFO L87 Difference]: Start difference. First operand 47631 states and 59850 transitions. Second operand has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:51,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:52:51,655 INFO L93 Difference]: Finished difference Result 133463 states and 167367 transitions. [2024-11-28 02:52:51,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 02:52:51,655 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-28 02:52:51,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:52:51,739 INFO L225 Difference]: With dead ends: 133463 [2024-11-28 02:52:51,739 INFO L226 Difference]: Without dead ends: 94782 [2024-11-28 02:52:51,762 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2024-11-28 02:52:51,762 INFO L435 NwaCegarLoop]: 1521 mSDtfsCounter, 15175 mSDsluCounter, 4926 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15175 SdHoareTripleChecker+Valid, 6447 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:52:51,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15175 Valid, 6447 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:52:51,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94782 states. [2024-11-28 02:52:55,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94782 to 93594. [2024-11-28 02:52:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93594 states, 93592 states have (on average 1.2371677066415934) internal successors, (115789), 93593 states have internal predecessors, (115789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:55,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93594 states to 93594 states and 115789 transitions. [2024-11-28 02:52:55,324 INFO L78 Accepts]: Start accepts. Automaton has 93594 states and 115789 transitions. Word has length 90 [2024-11-28 02:52:55,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:52:55,324 INFO L471 AbstractCegarLoop]: Abstraction has 93594 states and 115789 transitions. [2024-11-28 02:52:55,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.521739130434783) internal successors, (219), 22 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:52:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 93594 states and 115789 transitions. [2024-11-28 02:52:55,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-28 02:52:55,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:52:55,329 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:52:55,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 02:52:55,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:55,534 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:52:55,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:52:55,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1519319510, now seen corresponding path program 1 times [2024-11-28 02:52:55,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:52:55,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856972288] [2024-11-28 02:52:55,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:55,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:52:55,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:56,069 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:52:56,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:52:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856972288] [2024-11-28 02:52:56,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856972288] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:52:56,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145898113] [2024-11-28 02:52:56,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:52:56,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:52:56,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:52:56,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:52:56,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:52:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:52:56,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 66 conjuncts are in the unsatisfiable core [2024-11-28 02:52:56,306 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:08,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:55:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:18,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145898113] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:55:18,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:55:18,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 30, 30] total 67 [2024-11-28 02:55:18,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308422403] [2024-11-28 02:55:18,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:55:18,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2024-11-28 02:55:18,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:55:18,005 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2024-11-28 02:55:18,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=742, Invalid=3680, Unknown=0, NotChecked=0, Total=4422 [2024-11-28 02:55:18,006 INFO L87 Difference]: Start difference. First operand 93594 states and 115789 transitions. Second operand has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:41,958 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 367 DAG size of output: 273 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:55:55,179 WARN L286 SmtUtils]: Spent 11.52s on a formula simplification. DAG size of input: 480 DAG size of output: 307 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:56:01,641 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification. DAG size of input: 383 DAG size of output: 290 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:56:06,972 WARN L286 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 368 DAG size of output: 281 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 02:57:20,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:57:20,511 INFO L93 Difference]: Finished difference Result 207939 states and 258296 transitions. [2024-11-28 02:57:20,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2024-11-28 02:57:20,512 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-28 02:57:20,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:57:20,629 INFO L225 Difference]: With dead ends: 207939 [2024-11-28 02:57:20,629 INFO L226 Difference]: Without dead ends: 124464 [2024-11-28 02:57:20,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13306 ImplicationChecksByTransitivity, 133.0s TimeCoverageRelationStatistics Valid=7448, Invalid=31558, Unknown=0, NotChecked=0, Total=39006 [2024-11-28 02:57:20,677 INFO L435 NwaCegarLoop]: 1557 mSDtfsCounter, 21549 mSDsluCounter, 25393 mSDsCounter, 0 mSdLazyCounter, 3389 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21549 SdHoareTripleChecker+Valid, 26950 SdHoareTripleChecker+Invalid, 3515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 3389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:57:20,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [21549 Valid, 26950 Invalid, 3515 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [126 Valid, 3389 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-28 02:57:20,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124464 states. [2024-11-28 02:57:25,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124464 to 102079. [2024-11-28 02:57:25,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102079 states, 102077 states have (on average 1.2330397640996502) internal successors, (125865), 102078 states have internal predecessors, (125865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102079 states to 102079 states and 125865 transitions. [2024-11-28 02:57:25,819 INFO L78 Accepts]: Start accepts. Automaton has 102079 states and 125865 transitions. Word has length 91 [2024-11-28 02:57:25,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:57:25,820 INFO L471 AbstractCegarLoop]: Abstraction has 102079 states and 125865 transitions. [2024-11-28 02:57:25,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 3.6865671641791047) internal successors, (247), 67 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:57:25,824 INFO L276 IsEmpty]: Start isEmpty. Operand 102079 states and 125865 transitions. [2024-11-28 02:57:25,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:57:25,826 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:57:25,826 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:57:25,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:57:26,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:26,028 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:57:26,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:57:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1473270273, now seen corresponding path program 1 times [2024-11-28 02:57:26,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:57:26,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669203015] [2024-11-28 02:57:26,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:26,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:57:26,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:29,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:29,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:57:29,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669203015] [2024-11-28 02:57:29,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669203015] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:57:29,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519761916] [2024-11-28 02:57:29,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:57:29,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:57:29,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:57:29,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:57:29,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:57:29,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:57:29,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 02:57:29,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:57:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:30,782 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:57:32,622 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 7 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:57:32,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519761916] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:57:32,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:57:32,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 13, 13] total 51 [2024-11-28 02:57:32,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235930980] [2024-11-28 02:57:32,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:57:32,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 02:57:32,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:57:32,624 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 02:57:32,624 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=2381, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 02:57:32,624 INFO L87 Difference]: Start difference. First operand 102079 states and 125865 transitions. Second operand has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:58:13,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:13,025 INFO L93 Difference]: Finished difference Result 173911 states and 213899 transitions. [2024-11-28 02:58:13,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2024-11-28 02:58:13,026 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-28 02:58:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:13,188 INFO L225 Difference]: With dead ends: 173911 [2024-11-28 02:58:13,188 INFO L226 Difference]: Without dead ends: 140675 [2024-11-28 02:58:13,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15952 ImplicationChecksByTransitivity, 27.6s TimeCoverageRelationStatistics Valid=7853, Invalid=40767, Unknown=0, NotChecked=0, Total=48620 [2024-11-28 02:58:13,210 INFO L435 NwaCegarLoop]: 1681 mSDtfsCounter, 23343 mSDsluCounter, 31996 mSDsCounter, 0 mSdLazyCounter, 7413 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23343 SdHoareTripleChecker+Valid, 33677 SdHoareTripleChecker+Invalid, 7558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 7413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:13,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23343 Valid, 33677 Invalid, 7558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [145 Valid, 7413 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-28 02:58:13,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140675 states. [2024-11-28 02:58:19,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140675 to 88742. [2024-11-28 02:58:19,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88742 states, 88740 states have (on average 1.2280820374126662) internal successors, (108980), 88741 states have internal predecessors, (108980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:58:19,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88742 states to 88742 states and 108980 transitions. [2024-11-28 02:58:19,614 INFO L78 Accepts]: Start accepts. Automaton has 88742 states and 108980 transitions. Word has length 92 [2024-11-28 02:58:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:58:19,615 INFO L471 AbstractCegarLoop]: Abstraction has 88742 states and 108980 transitions. [2024-11-28 02:58:19,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 5.0) internal successors, (255), 51 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:58:19,615 INFO L276 IsEmpty]: Start isEmpty. Operand 88742 states and 108980 transitions. [2024-11-28 02:58:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-28 02:58:19,634 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:58:19,634 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:58:19,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:58:19,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:19,837 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:58:19,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:58:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash -108097977, now seen corresponding path program 1 times [2024-11-28 02:58:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:58:19,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426838612] [2024-11-28 02:58:19,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:58:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:58:22,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:58:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426838612] [2024-11-28 02:58:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426838612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:58:22,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928008226] [2024-11-28 02:58:22,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:58:22,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:58:22,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:58:22,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:58:22,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:58:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:58:22,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 02:58:22,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:58:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:58:25,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:58:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 9 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:58:28,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928008226] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:58:28,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:58:28,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 16, 16] total 40 [2024-11-28 02:58:28,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282842428] [2024-11-28 02:58:28,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:58:28,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-11-28 02:58:28,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:58:28,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-11-28 02:58:28,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1368, Unknown=0, NotChecked=0, Total=1560 [2024-11-28 02:58:28,670 INFO L87 Difference]: Start difference. First operand 88742 states and 108980 transitions. Second operand has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:58:51,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:58:51,454 INFO L93 Difference]: Finished difference Result 201004 states and 248790 transitions. [2024-11-28 02:58:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2024-11-28 02:58:51,454 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-28 02:58:51,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:58:52,222 INFO L225 Difference]: With dead ends: 201004 [2024-11-28 02:58:52,222 INFO L226 Difference]: Without dead ends: 154860 [2024-11-28 02:58:52,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4857 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=2854, Invalid=11426, Unknown=0, NotChecked=0, Total=14280 [2024-11-28 02:58:52,356 INFO L435 NwaCegarLoop]: 1568 mSDtfsCounter, 14663 mSDsluCounter, 20681 mSDsCounter, 0 mSdLazyCounter, 2001 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14663 SdHoareTripleChecker+Valid, 22249 SdHoareTripleChecker+Invalid, 2070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 2001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:58:52,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14663 Valid, 22249 Invalid, 2070 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 2001 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-28 02:58:52,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154860 states. [2024-11-28 02:59:00,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154860 to 89810. [2024-11-28 02:59:00,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89810 states, 89808 states have (on average 1.232006057366827) internal successors, (110644), 89809 states have internal predecessors, (110644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89810 states to 89810 states and 110644 transitions. [2024-11-28 02:59:00,966 INFO L78 Accepts]: Start accepts. Automaton has 89810 states and 110644 transitions. Word has length 92 [2024-11-28 02:59:00,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:59:00,967 INFO L471 AbstractCegarLoop]: Abstraction has 89810 states and 110644 transitions. [2024-11-28 02:59:00,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.85) internal successors, (234), 40 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:59:00,967 INFO L276 IsEmpty]: Start isEmpty. Operand 89810 states and 110644 transitions. [2024-11-28 02:59:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-28 02:59:00,973 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:59:00,973 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:59:00,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-28 02:59:01,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 02:59:01,178 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:59:01,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:59:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 640907252, now seen corresponding path program 1 times [2024-11-28 02:59:01,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:59:01,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882543220] [2024-11-28 02:59:01,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:59:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:07,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:59:07,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882543220] [2024-11-28 02:59:07,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882543220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:59:07,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170927660] [2024-11-28 02:59:07,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:59:07,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:59:07,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:59:07,541 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:59:07,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 02:59:07,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:59:07,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 70 conjuncts are in the unsatisfiable core [2024-11-28 02:59:07,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:59:21,746 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:21,746 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:59:32,946 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:59:32,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170927660] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:59:32,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:59:32,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 29] total 87 [2024-11-28 02:59:32,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300508557] [2024-11-28 02:59:32,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:59:32,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2024-11-28 02:59:32,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:59:32,949 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2024-11-28 02:59:32,950 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=958, Invalid=6524, Unknown=0, NotChecked=0, Total=7482 [2024-11-28 02:59:32,950 INFO L87 Difference]: Start difference. First operand 89810 states and 110644 transitions. Second operand has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:09,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:09,391 INFO L93 Difference]: Finished difference Result 215826 states and 264593 transitions. [2024-11-28 03:03:09,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 348 states. [2024-11-28 03:03:09,393 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-28 03:03:09,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:10,128 INFO L225 Difference]: With dead ends: 215826 [2024-11-28 03:03:10,129 INFO L226 Difference]: Without dead ends: 182511 [2024-11-28 03:03:10,268 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 421 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69384 ImplicationChecksByTransitivity, 193.4s TimeCoverageRelationStatistics Valid=26359, Invalid=152147, Unknown=0, NotChecked=0, Total=178506 [2024-11-28 03:03:10,273 INFO L435 NwaCegarLoop]: 1728 mSDtfsCounter, 25526 mSDsluCounter, 32753 mSDsCounter, 0 mSdLazyCounter, 13327 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25526 SdHoareTripleChecker+Valid, 34481 SdHoareTripleChecker+Invalid, 13549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 13327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:10,277 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25526 Valid, 34481 Invalid, 13549 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [222 Valid, 13327 Invalid, 0 Unknown, 0 Unchecked, 19.3s Time] [2024-11-28 03:03:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182511 states. [2024-11-28 03:03:20,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182511 to 89810. [2024-11-28 03:03:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89810 states, 89808 states have (on average 1.232262159273116) internal successors, (110667), 89809 states have internal predecessors, (110667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:20,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89810 states to 89810 states and 110667 transitions. [2024-11-28 03:03:20,723 INFO L78 Accepts]: Start accepts. Automaton has 89810 states and 110667 transitions. Word has length 93 [2024-11-28 03:03:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:20,725 INFO L471 AbstractCegarLoop]: Abstraction has 89810 states and 110667 transitions. [2024-11-28 03:03:20,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 3.0) internal successors, (261), 87 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:20,729 INFO L276 IsEmpty]: Start isEmpty. Operand 89810 states and 110667 transitions. [2024-11-28 03:03:20,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-28 03:03:20,745 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:20,746 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:20,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:03:20,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:20,948 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:20,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:20,949 INFO L85 PathProgramCache]: Analyzing trace with hash -565350678, now seen corresponding path program 1 times [2024-11-28 03:03:20,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:20,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39421324] [2024-11-28 03:03:20,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:20,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:21,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:21,709 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:21,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:21,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39421324] [2024-11-28 03:03:21,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39421324] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:03:21,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:03:21,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:03:21,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27698838] [2024-11-28 03:03:21,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:03:21,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:03:21,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:21,718 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:03:21,718 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:03:21,718 INFO L87 Difference]: Start difference. First operand 89810 states and 110667 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:38,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:03:38,651 INFO L93 Difference]: Finished difference Result 92855 states and 115632 transitions. [2024-11-28 03:03:38,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:03:38,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-28 03:03:38,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:03:38,766 INFO L225 Difference]: With dead ends: 92855 [2024-11-28 03:03:38,766 INFO L226 Difference]: Without dead ends: 91314 [2024-11-28 03:03:38,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:03:38,779 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 796 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 3734 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 4397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 3734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:03:38,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 872 Invalid, 4397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 3734 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-28 03:03:38,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91314 states. [2024-11-28 03:03:46,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91314 to 91312. [2024-11-28 03:03:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91312 states, 91310 states have (on average 1.229175336764867) internal successors, (112236), 91311 states have internal predecessors, (112236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:46,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91312 states to 91312 states and 112236 transitions. [2024-11-28 03:03:46,403 INFO L78 Accepts]: Start accepts. Automaton has 91312 states and 112236 transitions. Word has length 119 [2024-11-28 03:03:46,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:03:46,405 INFO L471 AbstractCegarLoop]: Abstraction has 91312 states and 112236 transitions. [2024-11-28 03:03:46,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:03:46,406 INFO L276 IsEmpty]: Start isEmpty. Operand 91312 states and 112236 transitions. [2024-11-28 03:03:46,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-28 03:03:46,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:03:46,421 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:03:46,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:03:46,423 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:03:46,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:03:46,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1662991261, now seen corresponding path program 1 times [2024-11-28 03:03:46,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:03:46,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449866847] [2024-11-28 03:03:46,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:46,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:03:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 46 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:47,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:03:47,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449866847] [2024-11-28 03:03:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [449866847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:03:47,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099056302] [2024-11-28 03:03:47,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:03:47,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:03:47,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:03:47,655 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:03:47,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d78cc89f-5b40-4278-b7fa-9dbbf4adb6da/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:03:47,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:03:47,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-28 03:03:47,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:03:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 72 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:51,661 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:03:54,099 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 63 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:03:54,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099056302] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:03:54,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:03:54,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 11] total 36 [2024-11-28 03:03:54,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233199056] [2024-11-28 03:03:54,104 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:03:54,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 03:03:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:03:54,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 03:03:54,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=1121, Unknown=0, NotChecked=0, Total=1260 [2024-11-28 03:03:54,109 INFO L87 Difference]: Start difference. First operand 91312 states and 112236 transitions. Second operand has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:04:09,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:04:09,589 INFO L93 Difference]: Finished difference Result 196669 states and 241944 transitions. [2024-11-28 03:04:09,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 03:04:09,590 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 10.777777777777779) internal successors, (388), 36 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-28 03:04:09,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:04:09,830 INFO L225 Difference]: With dead ends: 196669 [2024-11-28 03:04:09,830 INFO L226 Difference]: Without dead ends: 142806 [2024-11-28 03:04:09,880 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1200 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1281, Invalid=5039, Unknown=0, NotChecked=0, Total=6320 [2024-11-28 03:04:09,881 INFO L435 NwaCegarLoop]: 1520 mSDtfsCounter, 22734 mSDsluCounter, 17050 mSDsCounter, 0 mSdLazyCounter, 1694 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22734 SdHoareTripleChecker+Valid, 18570 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:04:09,883 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22734 Valid, 18570 Invalid, 1739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1694 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 03:04:10,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142806 states.